Rib applying and cutting machine



Dec. 10, 1968 l C. G, MELANsoN 3,414,922

RIB APPLYING AND CUTTING MACHINE Filed March 15, 1967 4 Sheets-Sheet 1 IN VENTOR.

Dec. l0, 1968 c. G. MELANsoN 3,414,922

RIB APPLYING AND CUTTING MACHINE Filed March i5, 1967 4 sheets-511mm` 2 FIG. 4

` INVENTOR.

BY ffmwyMy/MM Dec. 10, 1968 c. G. MELANsoN 3,414,922

RIB APPLYING AND CUTTING MACHINE Filed March l5, 1967 4 Sheets-Sheet 3 I I BY FIG. 6 W "7 Dec. l0, 1968 c. G. MELANsoN RIB APPLYING AND CUTTING MACHINE 4 Sheets-Sheet 4 Filed March 15, 1967 INVENTOR. Cm'l )KM r/ZM zwyg United States Patent O 3,414,922 RIB APPLYING AND CUTTING MACHINE Charles G. Melanson, Lynn, Mass., assignors to Prime Manufacturing Company, Lynn, Mass., a corporation f Massachusetts Filed Mar. 15, 1967, Ser. No. 623,442 9 Claims. (Cl. 12--20) ABSTRACT 0F THE DISCLOSURE A machine for applying rib stripping to a flat insole blank, in which the invention comprises automatic mechanism for separating the insole and stripping preparatory to cutting oif the stripping at a point in the contour of the insole determined by feeler means.

This invention comprises a new and improved machine for applying a sewing rib to a flat insole blank in the manufacture of Goodyear shoes of the sewed-seat typethat is to say, shoes in which the sewing rib is carried about the full periphery of the heel seat rather than only forwardly from the breast line.

In applying a sewing rib to an insole for sewed-seat work it is the practice to start at the heel breast line on one side of the insole and progress rst around the heel seat, then forwardly and finally back to the starting point where it is then necessary to sever the rib strip at such a point that it may be evenly butted against the end of the rib already permanently attached to the insole.

The object of the present invention is to provide a machine arranged to operate in the manner above explained. To that end an important feature of the machine comprises feeler mechanism arranged to be tripped by contact with the fixed end of the already applied rib and operating to actuate severing or cutsoif mechanism to sever the rib strip as it is being advanced to the insole and in butting relation so that the full contour of the rib may be completed.

Another important feature of the invention consists in automatic mechanism controlled' by a feeler to cause Separation of the rib stripping from the insole preparatory to the severing operation. This is desirable in Order to provide clearance between thesevering mechanism and that portion of the rib which has already been applied to the insole.

These and other features of the invention will be best understood and appreciated from the following description `of a preferred embodiment thereof selected for purposes of illustration and shown in the accompanying drawings in which:

FIG. 1 is a view of the machine in side elevation,

FIG. 2 is a fragmentary view of a component cam,

FIG. 3 is a fragmentary view corresponding to FIG. 1 but on a larger scale,

FIG. 4 is a fragmentary top view corresponding to FIG. 3,

FIG. 5 is a plan view of the machine as shown in FIG. 1,

FIG. 6 is a fragmentary plan view tof an insole showing a portion of the applied rib, and

FIGS. 7 and 8 are diagrammatic views of the cutting mechanism shown in two different positions.

It will be apparent from FIG. 6 that the insole rib R is attached to the insole blank S beginning at the breast line and then progressing rearwardly about the heel seat and finally coming back to the initial starting point where the rib strip must be cut off and butted against the initially attached end of the rib. An oscillating feeler finger 60 is arranged to contact with this end of the rib and to trip the severing mechanism as will be explained hereinafter.

3,414,922 Patented Dec. 10, 1968 The main frame 10 of the machine supports at convenient height the various elements thereof. These include a freely rotatable work supporting rolil 12 to which the insole blank is presented. The roll is journaled upon a shaft 13 projecting transversely from an arm 14 pivoted to the frame at 15. A vertical rod 16 is connected at its lower end to the arm 14 and is surrounded at its upper end by a spring 17 which maintains the arm 14 yieldingly in operative position but permits it to be depressed with the roll 12 by treadle connections not shown. The arm 14 is also connected to toggle llinks 18 and 19 which may be straightened against the tension of the spring 17 to depress the arm with the roll 12.

The upper toggle link 19 passes through a block 20 arranged to swivel between lugs 20 on the frame as shown in FIG. 5. When the handle 22 is depressed for the reception of the work the toggle 18, 19 is straightened against the action fof the spring 17 and holds the roll 12 in open position `until the machine is set in operation.

The arm 14 carries an adjustable edge gauge 21 shown in FIG. 6 that is located adjacent to the top of the rohl 12 and controlled in its position by the handle 22 all as shown in Patent 2,903,723, Sept. 15, 11959, Hansen et al.

The feed mechanism of the machine comprises a pair of feed feet 23 and 24 operated alternatively by a pair of eccentrics, all as shown in Patent 1,794,204, Feb. 24, 1931, Ridderstrom. The feed feet act to press the adhesivecoated rib strip upon the surface of the insole and then to advance the rib strip with the adhered insole toward the left as seen in FIGS. l and 3.

The rib strip R is supplied from a coil, not shown, and enters the machine through a guide passage formed in a block 40 mounted upon an arm 44 of irregular shape arranged to rock about a pivot shaft 43 projecting from the frame. The guide passage for the rib strip is formed partly in the block 40, an underlying plate 41 and an overlying jaw 42. The arm 44 with the block 40 is arranged to swing to and from operative position as shown in FIG. 3 under solenoid control as will now be described.

The cam 30 carriers a crank pin 34 and to this is secured the lower end of a rod 33 connected to the armature of a solenoid 32 mounted on the upper portion of the frame. A pressure spring encircles the rod 33 and tends to rock thecam 30 in counterclockwise direction against a fixed stop 67 which is secured to the frame. The cam 30 carries upon its face a segmental cam 35 which cooperates with a cam roll 37 in rocking a cam arm 38 for a purpose which will be described.

The pivot shaft 31 of the cam 30 carriers a gear 47 meshing with an overhead rack 48. The rack 48 has a rectangular head 49 containing an upwardly sloping cam slot 50. A cam roll 51 carried by the slide 26 travels in this cam slot. The slide has a notch 27 in its lower end arranged to t over the rib R and hold it in shearing position with respect to a knife 59. The knife travels transversely in a guideway 58 and carries a cam roll 57 which travels in a slotted crank arm 55 secured to the face of the cam 30. A stop 36 secured to the frame determines the initial position of the cam 30 and the knife :59. When the solenoid 32 is energized the cam 30 is rocked in clockwise direction, the slide 26 is moved from the position shown in FIG. 7 to its rib engaging position as shown in FIG. 8

and in properly timed'relation the knife 59 is advanced to sever the rib strip. A cam-operated pawl 67 is arranged to engage a shoulder on the cam 30. It engages a pin 68 on the upper toggle link 19 operating to break the toggle when the machine is started. The trigger 60 comprises a .-long rod having an angular foot and being adjustably secured at its upper end in a head 61 forked and pivotally mounted on an inclined pivot 66 set in a carrier bar 62.

The angular foot of the trigger 60 is mounted in the machine for movement about the remote axis of the pivot 66 in a flat curved path adjacent to and across the surface of the insole. The carrier bar is mounted in a fixed slideway 63 in which it may be adjusted by means of a screw 64. Pivotal movement the feeler is arranged to trip a micro switch 65 carried by a bracket extending downwardly from the carrier bar 62 and wired in circuit with the solenoid 32. A work table 29 is mounted adjacent to the work-supporting roll 12 in position to guide the insole S to rib applying position in the machine.

The machine comes to rest with the toggle 18, 19 straightened and the work supporting roll 12 and table 29 -in their lower position. The operator now inserts the insole blank S upon the roll 12 and breaks the toggle so that the roll 12 is lifted by action of the spring 17. As the insole is pushed inwardly upon the roll 12 the feed feet 23, 24 press the end of the rib strip R into adhesive contact with the insole S and then feed the assembled rib strip and insole about the whole contour of the insole. At the cornpletion of this circuit the feeler 60 is rocked by contact with the initially attached end of the rib as suggested in FIG. 6.

When this occurs the micro switch 65 is operated, the solenoid 32 energized and the cam 30 oscillated from its position of FIG. 7 to that of FIG. 8. The toggle 18, 19 is thereupon straightened and the insole bdank moved downwardly with it to a position remote from the rib strip guide as shown in FIG. 3. The sheer plate 26 is now advanced to engage and support the rib strip and the knife 59 is advanced in timed relation for severing the stripping. The toggle 18, 19 is straightened by action of the pin 68 and the completed insole moved out of range of the feeler 60. The switch 65 is allowed to open when released by the feeler and the machine parts returned by spring actuation to their initia-l positions as determined by the fixed stop 36.

At the same time the toggle 18, 19 is straightened and the roll 12 moved downwardly, the segmental cam 35 acts through the cam roll 37 and the arm 38 to swing the cam arm 44 and all its connected parts in a counter-clockwise direction. Accordingly the rib strip R is moved upwardly away from the insole. The strip is then severed in a portion thereof which is substantially isolated from the insole on the one hand and the incoming strip on the other hand.

Having thus disclosed my invention and described in detail an illustrative embodiment thereof, I claim as new and desire to secure by Letters Patent:

1. A rib applying and cutting ol machine, comprising means for attaching one end of a continuous rib strip to the heel seat portion of an insole and leading the strip about the contour of the insole and so back to the starting point, a feeler mounted for movement transversely above the surface of the insole and operated by contact with the upstanding end of the previously attached rib, a guide element for the rib strip, and means controlled by the feeler for separating the rib strip from the insole and severing it while so separated.

2. A rib applying and cutting off machine as defined in claim 1, further characterized in that the feeler comprises a finger mounted to rock about an axis substantially parallel to the surface of the insole as presented to the machine in rib-securing position. l

3. A rib applying and cutting off machine as defined in claim 1, further characterized in that the feeler comprises a rod suspended from an axis located above the surface of the insole as presented to the machine and having an angular foot located in the path of the already attached end of the rib strip in its progress with the insole.

4. A rib applying and cutting off machine as defined in claim 1, further characterized in that the feeler is mounted to operate a micro switch in circuit with a solenoid-operated severing knife.

5. A rib applying and cutting olf machine as defined in claim 1, further characterized in that the feeler is arranged to operate a micro switch in circuit with a solenoid serving as a common actuator for cooperating rib shearing members.

6. A rib applying and cutting off machine as defined in claim 1, further characterized in that a guide element for the rib strip is mounted to swing about an axis remote from its point of rib application to the insole, and that automatic mechanism is tripped by the feeler for causing the guide element to be displaced with the rib strip preparatory to severing operation.

7. A rib applying and cutting off machine as defined 1n claim 1, further characterized in that the feeler device comprises a rod having a rib-engaging foot at its lower end, and a block at its upper end in which the rod is longitudinally adjustable, means for transversely adjusting the block and rod, and means for pivotally suspending the block.

8. A rib applying and cutting off machine as defined in claim 1, further characterized in that a rotary support is provided for the insole, together with feeler-controlled means for imparting relative separating movement to the insole support and the guide element for the rib stripping.

9. A rib applying and cutting off machine as defined in claim 1, further characterized in that the rib severing means includes a slide having a notch fitting over the attached rib and a reciprocatory knife movable to sever the rib while held in said notch, a rack and pinion for operating the slide, and cam connections for operating the knife in timed relation to the movement of the slide.

References Cited UNITED STATES PATENTS 2,65 7,405 11/ 195 3 Ridderstrom 12-20 2,670,480 3/1954 Clark 12-20 2,828,495 4/ 1958 Sjoberg 12-20 2,933,744 4/ 1960 Lotarski et al 12-20 PATRICK D. LAWSON, Primary Examiner. 

